Mathematicians Light Bulb Joke
Question: How many mathematicians does it take to screw in a lightbulb?
Answer: None. It's left to the reader as an exercise.
Answer: Just one, once you've managed to present the problem in terms he/she is familiar with.
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light bulb jokes are jokes that ask how many people of a certain group are needed to change, replace, or screw in a light bulb. Generally, the punch line answer highlights a stereotype of the target group. There are numerous versions of the light bulb joke satirizing a wide range of cultures, beliefs and occupations.